A "carpet" of microscopic filaments sprayed onto a surface can prevent it from reflecting light, a potentially useful trait for technologies from solar cells to fiber-optic communications. (p. 132)

A new artificial knee ligament that sparks regeneration of natural tissue could eventually make recovering from knee-repair surgery less painful and debilitating. (p. 116)

Evidence from ancient dunes points to three periods of prolonged drought in the U.S. Great Plains, but finding their causes may be more complex than previously supposed. (p. 84)

Ripples in space-time may soon give scientists a glimpse of the universe as it looked a tiny fraction of a second after its birth. (p. 69)

A new imaging technique creates microscopic three-dimensional views of tissues within a patient's body and can update those images several times a second. (p. 51)

Apple juice might be a way to keep the doctor away, but a glass of cider appears to be even better.